My rear drivers side is leaking. I have watched a few videos on replacing the seal. How do I tell if I need to replace the bearings at the same time?
I have not done any bearings/chase in over well 20 years and do not have the tools to press the chase out and new in. What size is needed so I know what kits to look at?

I am finding conflicting sizes for the parts online. Could someone post the correct part numbers?

Thanks